Need Some Help With My Mytouch3gSupport

So I live in a dorm and my phone fell from the bunk bed to the floor and the battery popped out and everything.

But when I tried to turn it back on it goes to the green turn on screen then the black screen where it says 'android' in the middle then after that it goes to a black lit screen and just freezes there.

I tried to boot it up pressing the home and end key but it goes to that picture of the phone and a triangle with an '!' in the middle of it.